Liquid spraying apparatus



Aug. 17, 1937. B. GLATTKE LIQUID SPRAYING APPARATUS Filed Aug. 29, v1952 Patented Aug. 17, 1937 UNITED STATES PATENT OFFICE 2 Claims.

The invention relates to spraying devices, but more particularly to devices of the character used in stores for creating a ne mist, or fog over vegetables to keep them fresh, and militate against decay and spoilage, and an object is to produce an apparatus of this character having the new and improved features of construction, arrangement and operation hereinafter described.

Another object is to produce a spraying apparatus of the above type having an adjustable head for controlling the amount of fog or mist and for directing the fog in any desired direction.

The invention is shown by way of illustration, in the accompanying drawing, in which:

Figure 1 is a vertical sectional elevation of the apparatus showing in dotted lines the head in tilted position;

Figure 2 is an enlarged transverse sectional 2O view of the line 2 2 of Figure 1;

Figure 3 is an enlarged vertical sectional View showing the nozzle and removable tip mounted on the upper end of the inner tube;

Figure 4 is a plan view of a tip cleaner;

Figure 5 is an alternate form of head in which half the side walls are imperforate and an inclined spray-directing surface is provided on the top wall; and

Figure 6 is a vertical sectional view of an alternate form of spray-directing member.

The illustrated embodiment of the invention comprises an upright inner tube Ill, the lower end of which is in screw threaded engagement with a mounting II, which has a lateral inlet I2 to receive Water under pressure. It is to be noted that the inlet opening is smaller than the diameter of the tube ID. The mounting H may be a permanent installation, and is connected by suitable pipes to the water supply. From the mounting II depends an extension I 3 to which piping is connected to drain from the apparatus unused or surplus liquid. As shown, the extension I3 communicates with the inside of the mounting II, and liquid is free to flow therethrough around the liquid inlet passage I2.

Enclosing the inner tube Ill is an outer tube I la, which is supported by and in screw threaded engagement with the upper end portion It of the mounting II at its lower end, the upper end of the tube IIa extending beyond the end of the inner tube I0. A cup I5 having an enlarged upper portion I6 is mounted on the outer end of 5 the tube Ila. The inner wall of the enlarged portion I6 is screw threaded to receive an adjustable head I1.

The head I'I consists of a ring I8 having eX- ternal screw threads and a baille plate I9 spaced outwardly from the ring I8, and is secured thereto by a plurality of pins 2li. The underside of the plate I9 is slightly concave, and disposed cen- 5 trally thereof is a polished surface 2I, which in this instance is disc-shaped, and in the center is a pointed pin or projection 22. The" region 23 outside of the smooth or polished disc 2l is rough or unpolished.

Mounted on the outer end of the inner tube l0, which, as shown in Figure 1, terminates short of the cup I5, is a nozzle 2li having a restricted outlet 25, into which is screwed a tip 2S having a ne port 2l through which liquid is discharged in a fine needle-like stream. The liquid is discharged from the tip 26 at considerable pressure and impinges against the point 22 and surface 2 I, where it is deflected laterally into a fine mist or fog. The liquid will not adhere to any extent to 20 the unpolished surface 23, and consequently some will drop into the cup I5 and `flow down the pipe II to a collar 2B, which is part of the nozzle 24, and is provided with a plurality of ports 29 through which the surplus liquid passes into the mounting II.

It will be noted that the head I1 is longitudinally adjustable so that the baffle plate may be moved closer to or farther away from the cup i5 for increasing or diminishing the mist or fog. Under some conditions it is desirable to direct the fog or mist in a certain direction. This may be accomplished with the head i1 by unscrewing it from the cup I5, and resting in the cup in tilted position, as shown by the dotted lines in Figure 1. Obviously, the head may be tilted in any desired direction so that the spray will be deected to the place or places desired.

As above mentioned, the tip 2S is removables' that other tips may be substituted having larger or finer ports 2l. This enables` the stream dis'- charged from the inner tube I0 to be regulated as desired. Owing to the ineness of the port 2l it is sometimes necessary to clean out this port and for this purpose a cleaner 3U may be used. 45 The cleaner 30 comprises a relatively small tube through which a wire 3l extends and projects beyond opposite ends of the tube. The' intermediate portion of the tube is looped one or more times, as indicated at 32, to provide a handle and storage supply for the cleaner, and also retain the wire from slipping easily in the tube. By forcing one end or the other of the wire 3l through the port 21 it will be readily seen that cleaning may be conveniently accomplished.

As shown on Fig. 5, the head I'I is provided with an imperforate side wall I8, which extends approximately half way around the head leaving an opening I93L for the discharge of spray. As shown, the side walls are screw-threaded for adjustment in the cup I similar to the form above described. Instead of using the point 22 above mentioned, an inclined spray-directing surface 20a may be provided, the inclination being such as to deect the spray laterally through the discharge opening I9a.

Figure 6 shows an alternate form of nozzle head and comprises a body portion 24|b in screw threaded engagement with the upper end of the liquid discharge pipe 257". The body-.portionI is provided with a peripheral ange 2Gb for engagement with the mounting tube 2lb. Formed in the flange are a series of notches 28b through which the overflow may pass, corresponding in purpose to the ports 29 above described, Extending outwardly from the central portion of the body portion is a nozzle 29b having a relatively small opening 3Ilb. In this instance the nozzle is integralI with the head.

It is to be understood that numerous changes in details of construction, arrangement and operation may be effected without departing from the spirit of the invention, especially as dened in the appended claims.

What is claimed is:

1. A vaporizing apparatus comprising a tubular member, means for creating a fine stream of liquid longitudinally of said tubular member, a tubular member enclosing said first tubular member and having an enlarged outer end portion, baffle means on said enlarged outer end adapted to receive said stream, and an adjustable connection between said baffle member and the outer end of said second tubular member to enable said baille member to be moved toward or away from said second tubular member, said baille means being bodily removable from said second tubular member and adapted to be tilted for directing the spray in one direction or another as desired.

2. A vaporizing apparatus comprising a tubular member having an enlarged end portion, a head adjustably connected for longitudinal movement on said enlarged end portion, a spray-directing surface on said head and spaced outwardly therefrom, said head being bodily removagainst which a stream of liquid is adapted to be impinged and a pointed member within said polished surface, a substantially roughened surface surrounding said polished surface, and means l within said tubular member for directing a relatively fine stream of liquid against said spray directing element.

BENJAMIN L. GLATTKE. 

